As a Red Sox fan, I would never pay that much for Ellsbury. He does not even definitely have a starting job. That being said, with the way him and Crisp were doing at the end of last season, it wouldn't be too much of a stretch to say you believe Ellsbury will get the job. And he will be comparable to Victorino if he does get the starting job. While I see this as a chancy trade by the one who is getting Ellsbury, I don't see it as a trade that should be vetoed. There is no collusion here, and sometimes you have to let people play the game.
All you can do is post on the message board, and try and get reasons from these other teams why they are vetoing the trade. It would be a good idea to explain your reasoning, and ask the other team involved in the trade to explain his reasoning, and go from there.